2 Content of the Porsche 991 ABS M5 Kit ........................3 Required Parts................................. 4 Installation of the ABS M5 Kit............................Installation of the hydraulic parts .................................. Installation of wiring loom and electrical components ......................... Finishing the installation....................................ii / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
Introduction | 1 1 Introduction This Installation Manual describes how to fit the Bosch Motorsport ABS M5 into a Porsche 991 Cup car. The manual is valid for the 991 Cup generations 1 and 2. Differences between these two models will be mentioned in this manual.
Fittings for brake pipes at hydraulic unit VR und HR 2 brake pressure sensors 12-position switch Malfunction light LED Wiring loom w/o image 3 fuses, 40 A, 25 A, 10 A This instruction will also refer to the following drawing of Porsche 991 original parts. 4 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
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Illustration 3: Brake Pipes (not included in the Kit) This brake pipes replace the pipes 1 to 4. The brake pipes link Porsche bracket 23 to both ABS M5 connections, labeled with MC1 and MC2 on the hydraulic module. Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 5 / 16...
Brake Pipe Front Axle MC Brake pipe to link Porsche bracket 23 to ABS M5 item A labeled with MC1. Brake Pipe Rear Axle MC Brake pipe to link Porsche bracket 23 to ABS M5 item A labeled with MC2. 6 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
5 and 6 to remove these. These are no longer needed. Illustration 5: Original Cup parts removed For the installation of the ABS HU assembly, push this into the rubber bushes as shown in the following picture below. Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 7 / 16...
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Prime the ABS brake pressure sensor with a syringe and install one of them on each brake circuit connector. This is the last step of the installation of the brake hydraulics. Illustration 8: ABS brake pressure sensors installed 8 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
1.5 mm. File these notches out. Mark the correct vertical positions for the two holes for the connector fixation and drill two holes. Illustration 9: Position of hole in bulk head Illustration 10: Position of fixation holes, vertical Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 9 / 16...
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ABS loom connector “…out”. By doing this, the wheel speed signal is fed to the ABS and from the signal splitter back to the vehicle display. Repeat this for front left. Illustration 12: ABS loom for front boot area 10 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
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Installation of the ABS M5 Kit | 4 Illustration 13: Wiring loom position at ABS exit Illustration 14: Wheel speed sensor FR connector w/o ABS Illustration 15: ABS loom connected Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 11 / 16...
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E. Screw the yaw rate sensor F onto the mounting plate. Illustration 18: Yaw rate sensor F on mounting plate E. Mounting plate on loom fastener Attention: This picture is outdated and will be renewed soon. 12 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
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Install the ABS 12-position switch (plus the corresponding sticker) and the ABS On/Off switch in the center console. The required holes are indicated on the back of the console. Illustration 21: ABS MIL Bosch Motorsport ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction 13 / 16...
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Feed the loom underneath all the existing fixation points on the center tunnel. Illustration 23: ABS loom runs from connection point upwards Illustration 24: ABS loom fixed behind display 14 / 16 ABS_M5_Kit_Porsche_991_Cup_Installation_Instruction Bosch Motorsport...
The MIL must come on. Run a test to make sure ABS is operational. If you have a MSA-Box available, run the Bosch Motorsport Software RaceABS to check all sensor signals, correct connection of the brake pipes and the wheelspeed sensors as well as the brake pressure sensor etc.